tagomoris

class X
  NAME1 = "name1"
  NAME2 = "name2"
  NAME3 = "name3"

  def replace_name_0(record, name)
    record
  end

  def replace_name_1(record, name)

tagomoris

{:here=>"write0", :length=>124}
{:read=>
  {:timekey=>24998551,
   :tagkey=>"hoge.pos.moge.hogehogehogehoge",
   :keys=>{:moge=>111},
   :id=>"d0d71b3d-b680-4549-b805-a08825e0f71d",
   :s=>1024,
   :c=>1499913050,
   :m=>1499913110}}
{:here=>"write1", :length=>102}

tagomoris

vagrant@vagrant-ubuntu-trusty-64:/vagrant$ ruby hoge.rb 
{:here=>"rescue", :closed=>true, :error=>#<IOError: stream closed>}
vagrant@vagrant-ubuntu-trusty-64:/vagrant$ ruby -e 'puts RUBY_VERSION'
2.3.3
vagrant@vagrant-ubuntu-trusty-64:/vagrant$ ruby -v
ruby 2.3.3p222 (2016-11-21 revision 56859) [x86_64-linux-gnu]

tagomoris

$ ruby hoge.rb 
{:here=>"creating socket"}
{:here=>"creating sslsocket"}
:here=>"socket.new"}

{:here=>"connecting"}
{:here=>"calling super"}
{:here=>"super called"}
{:here=>"on_connect"}
{:here=>"trying accept", :accepted=>false}

tagomoris

N=1_000
line = "a" * 200 + "\n"
body = line * 300
Benchmark.bm{|x|
  x.report("splitonly") {
    N.times{
      buf = body.dup
      lines = []
      while !buf.empty?
        lines << buf.slice!(0,201)

tagomoris

      server_create(:title, proto: :tcp, port: @port, connection_callback: true) do |conn|
        # on connection
        source_addr = conn.addr
        source_port = conn.port

        conn.data do |data|
          # on data
          conn.write resp # ...
          conn.disconnect
        end

tagomoris

def foo
  raise "yay"
end

def hoge
  tag = foo
rescue => e
  {tag: tag, e: e}
end

tagomoris

# block and yield
[15] pry(main)> t = Time.now; 10_000_000.times{ myroot2{|t,r| t; r; 1} }; p(Time.now - t)
19.370526
=> 19.370526

# multi value return
[16] pry(main)> t = Time.now; 10_000_000.times{ myroot1{|t,r| t; r; 1} }; p(Time.now - t)
14.743976
=> 14.743976

tagomoris

Fluentd Forward Protocol Specification (v1)

This is a protocol specification for Fluentd forward input/output plugins. This protocol is also used by fluent-logger software, and many other software in ecosystem (e.g., Docker logging driver for Fluentd).

This protocol version is v1. This spec is supported by Fluentd v0.14 (v0.14.5 and later), and v1 (in plan). Protocol version v0 is supported by v0.10 and v0.12, and protocol version v1 is compatible with v0 (All implementations which supports v1 also supports v0).

Changes

• August 30, 2016: start to write this draft

tagomoris

class A
  def foo
    "a"
  end
end

class B < A
  def foo
    v = super
    "b#{v}"